Intake Manifold Cleaning and Inspection

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Clean the intake manifold mating surfaces.

Fig 1: View Of Intake Manifold
Courtesy of GENERAL MOTORS CORP.
Inspect the intake manifold for damage.
Inspect the intake manifold for cracks near metallic inserts.
Inspect the??? in the intake manifold face for blockage.
CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
Clean the crankcase ventilation passages with compressed air if necessary. Use a maximum of 172 kPa (25 psi) of air pressure.

Fig 2: View Of Crankcase Ventilation Passages
Courtesy of GENERAL MOTORS CORP.
Replace the intake manifold as necessary.